Vacuum detector
US4471309A · kind A · utility
10Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1982 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | Feb 9, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3274
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a novel vacuum detection means utilizing a high frequency, high voltage device to excite an electrical discharge in a vacuum whose characteristics are dependent on the level of the vacuum contained therein. This discharge current allows the degree of vacuum to be continuously monitored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.